Revert of Reland debugging for ipc related crash.

Revert of Reland debugging for ipc related crash. (patchset #1 id:1 of https://codereview.chromium.org/1354063002/ )

Reason for revert:
Supposedly, this CL only changes the signature of the crash, not the presence of the crash. There is some (but not totally clear) evidence that this CL is causing a crash itself.

https://code.google.com/p/chromium/issues/detail?id=527588#c32

Original issue's description:
> Reland debugging for ipc related crash.
>
> This CL is almost identical to https://codereview.chromium.org/1350823002/. The
> only difference is that the part of the CL that causes the crash has been
> omitted.
>
> BUG=527588
>
> Committed: https://crrev.com/a7502c6dff276bce3c76d680c5d613cb6ece19be
> Cr-Commit-Position: refs/heads/master@{#349828}

TBR=avi@chromium.org,tsepez@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=527588
Committed: https://crrev.com/dbc8c1869a4fd0493150c008106be720eba86205
Cr-Commit-Position: refs/heads/master@{#350062}

[erikchen, 2015-09-21 23:37:11]

Created Revert of Reland debugging for ipc related crash.

[commit-bot: I haz the power, 2015-09-21 23:37:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1354863004/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1354863004/1

[commit-bot: I haz the power, 2015-09-21 23:39:11]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-09-21 23:40:30]

Patchset 1 (id:??) landed as
https://crrev.com/dbc8c1869a4fd0493150c008106be720eba86205
Cr-Commit-Position: refs/heads/master@{#350062}

[erikchen, 2015-09-22 18:42:27]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1359933002/ by erikchen@chromium.org.

The reason for reverting is: Relanding this CL, as I don't think it will
actually cause crashes.

https://code.google.com/p/chromium/issues/detail?id=524032#c27.